Throttling-valve.



E. E RH'JHARDSON.

THROTTLING VALVE.

APPLICATION FILED JUNE 6. 1916.

pm: my 51 Patented June 25, 1918.

Ell/TOR lit TROTTLING-VALVE.

a lication filed me 6, me. Serial no. 101,959.

To all whom it may concern:

Be it known that I, EDWARD EDWARD RICHARDSON, a citizen of the United States, and a resident of the State of Ohio and the city of Toledo, in the county of Lucas, have invented a certain new and useful Throttling-Valve, of which the following is a specification.

In the drawings which accompany this application and form a part thereof;

Figure 1 is a front elevation of the valve;

' Fig. 2 is a horizontal section of the valve along the lines 22 of Fig. 1;

Fig. 3 is a plan view of the valve showing the rack and pinion mechanism;

Fig. 4 is a vertical section on the line d4 of Fig. 2 or Fig. 3;

Fig. 5 is a front elevation of the rack support, and,

Fig. 6 is a perspective of the revoluble shutter. Y

Similar numerals refer to similar parts throughout the several views.

My valve consists generally of a conductor in which are interposed shutters or vanes which may be allowed to remain open and permit the flow of substance through the valve or may be closed to out ofi' such flow. The conductor consists of two similar casing parts 10 and 11 square exteriorly and each provided with a boss 12 or 13 on the end adjacent the other part.

' llnteriorly the conductor is generally circular and preferably threaded to facilitate the insertion into a pipe line. At the end nearer the other part however the conductor parts are recessed as at 14 to form the square pocket 39 which forms the valve chamber proper. The boss on the exterior of the casing parts is provided for the purpose of securing together the two parts and for that purpose is provided with holes 24: as shown and in each hole is inserted a bolt 26 held in place by the nut 25. On the line of junction of the two parts and properly spaced are selected the centers of rotation of the shutters or vanes within the valve chamber. As illustrated there are four of these shutters and accordingly four holes 22 are provided on the line of junction on the upper side of the casing and extending through as shown, into the valve chamber 39. The holes are continued in the lower section of the casing at 23 but are not carried through to the outside. Tn these holes are mounted the axes of the revoluble shuttpecification of Letters Patent.

Patented ters. Obviously any desired number of shutters may be employed. Each shutter is composed of a central and principal portion 16, flat and thin, and ex- 111 tending from this downward is the axis 19 which enters the hole 23 and extending upward from the body is the axis '20 which enters the hole 22 and is of proper length to extend in the hole 22 to slightly above the top of the casing boss 12-13 and there car ries the segmental pinion 21. These axes are inserted into either part of the casing and the two parts of the casing then clamped together effectually securing the axes in place.

Provided onthe casing part 11 inside the valve chamber 39 are two projections 18 for a purpose now to be described. When the vanes 16" and 16 are rotated clockwise as shown in Fig. 2 and thevanes 16 and 16 are rotated counter-clockwise the outer edges of 16 and 16 will contact with the projection 18, the inner edges of these vanes with the outer edges respectively of the vanes 16 and 16, and the inner edges of the slot 34. In these slots slides a flat rack' member 27. This rack member, is widened at the center portion at the shoulders 32 and this center portion then consists of two end pieces 30 connected by two side pieces 28 which latter are provided on their inner edges with teeth 29 and 29'. These teeth mesh with the teeth of the segmental pinions 21, each rack meshing with alternate pinions, and thus motion of the rack in one direction produces rotation of' each alternate pinion in one direction, and of the remaining pinions in the opposite direction. The movement of the rack member is limited by the abutting of the shoulders 32 TNT valve operates as follows: Starting with the position shown in the illustrations the rack is moved toward the left in Fig. 1. During this motion the rack 29 engages with the pinions 21 and 21 and rotates them and the vanes 16 and 16 in a clockwise direction. At the same time the rack 29 engages the pinions 21 and 21 and rotates them and the vanes 16 and 16 in a counterclockwise direction thus closing the valve as explained above. Reverse motion of the rack then opens the valve.

It will be apparent from the above that I have provided a valve readily inserted into any plpe line, that the valve acts with veryslight motion of the controlling member, .that the action therefore may be made very rapid, and that the action of the vanes in approaching each other from the same side of the valve in closing makes possible a slight wedging action which renders possible an unusually tight joint. For this latter purposeI may provide all edges of the vanes with an elastic and compressible substance to increase the tightness of the closlng.

It is apparent that modifications may be made in the valve principally perhaps in the number of vanes, the outlines of the casing parts, and the means provided for securing the valve inthe conduit. All these in so far as they are within the scope of the appended claims I consider as within the scopeand part of my invention.

Iclaim:

1. A valve comprising a casing, a plurality of shutter members therein, one or more other shutter members therein, said members b.e-'

ing located in approximately a straight line, and the members of the two groups occuring alternately, and means for operating the members of the one group in one direction and the members of the other group in another direction.

2. The structure as in claim 1, the operation of the two groups being' simultaneous.

3. The structure as in claim 1, one of said shutte members being rotatable.

4:. The structure as in claim 1, all of said shutter members being rotatable.

5. The structure as 1n claim 1, said means being a single reciprocating member.

6. A valve comprising a casing, a plurality of shutter members therein, one or more other shutter members therein, the members of the two groups occurring alternately, and means for operating the members of one group in one direction and the members of the other group in another direction, said means including a body attached to each member and a reciprocating member acting directly on each body.

7. The structure as in claim 6, said shutter members being located in approximately a straight line.

8. The structure as in claim 6, said members being rotatable.

9. A valve comprising a casing, aplurality of shutter members therein, one or more othershutter members therein, the

members of the two groups occurring alternately, a reciprocating bar slotted longitudinally, a body on each of said members, the bodies on the members of the one group engaging with one side of the said slot and the bodies on the members of the other group engaging with the other side of the said slot, whereby said members may be plvoted in a straight line and yet the members of the two groups be rotated in alternate directions.

10. A valve comprising a casing, a plurality of shutter members therein, one or more other shutter members therein, the members of the two groups occurring alternately, the shutter members being in approximately a straight line, a reciprocating bar slotted longitudinally, a body on each of said members, the bodies on the members of. the one group engaging with one side of said slot and the bodies on the members of the other group engaging with the other side of said slot.

11. A valve comprising a casing, a plurality of vanes therein, another plurality of vanes therein, the vanes in the two groups occurring alternately, a segmental pimon on each vane, a reciprocating rod slotted longitudinally, teeth on the edges of said slot, the pinions on the vanes of the one group engaging the teeth on the one side of the slot and the pinions on the vanes of the other group engaging the teeth on the other side of said slot.

12. A valve comprising a casing, a plu rality of vanes therein, a second plurality of vanes therein, the vanes of the two groups occurring alternately, all of said vanes being pivoted in a straight line, a segmental pinion on the end of each vane, a reciproeating rod slotted longitudinally, teeth on the edges of the slot, the inions on the one group of vanes engaging t e teeth on the one edge of the slot and the pinions on the other group engaging the teeth on the other side of the 'slot, whereby alternate vanes are simultaneously rotated in alternate" directions to engage each other with a wedging action.

13. A valve comprising a casing, a pluality of shutter members therein, one or more other shutter members therein, the members of the two groups occurring alternately, and means for operating the members-of the one grou in the one direction and the members of t e other group in another direction, said means including a body attached to each member and a single actuating member attached directly to all of said bodies.

14. A valve comprising a casing, a plurality of shutter members therein, one or more other shutter members therein, the members of the two groups .ocourring a1ter nately, said members being in approximately a straight line, and means for operatin the members of the one group in the one irection and the members of the other group in the other direction, said operation being by a single member;

15. The structure as in claim 10, said mem- '10 bers being operated simultaneousl In testimony that I claim th above as my invention I have hereunder set my name.

EDWARD EDWARD RICHARDSON. 

